Abstract: This invention relates to a railway vehicle continual quick service valve device that embodies two abutments normally subject on their respective opposite sides of the pressure in a train brake pipe and in a control chamber. Upon a reduction of brake pipe pressure on one side of these abutments, one abutment operates a valve to release fluid under pressure from the brake pipe and the brake pipe side of the other abutment to atmosphere whereupon this other abutment operates a valve that releases fluid under pressure from the control chamber and the control chamber side of both abutments to atmosphere. These abutments then operate their respective valves to cut off venting of fluid under pressure from the brake pipe and the control chamber to atmosphere. If the reduction of brake pipe pressure on the one side of the one abutment continues, the above-described cycle reoccurs so long as fluid under pressure is released from the brake pipe.

Abstract: This invention relates to a hose coupling having mounted thereon a leaf spring locking member of such a configuration that the free end is so disposed that it constitutes a stop which is shiftable by the guard arm of the other one of a pair of hose couplings out of the pathway of this guard arm on the other one of the hose couplings as the one hose coupling and the arm thereon are rotated toward the fully coupled position of the pair of hose couplings. The configuration of the stop is such that the resiliency of the leaf spring locking member, upon the pair of couplings reaching their fully coupled position in which the arm passes out of contact with the stop, shifts this stop to a position in the pathway of the arm thereby preventing unwanted uncoupling of the pair of fully coupled hose couplings until the leaf spring is manually deflected to shift the stop out of the pathway of the guard arm.

Abstract: An upgraded railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a minimum number of simple and inexpensive poppet valves, one of which is a double seated valve, that replaces yet performs the same functions heretofore performed by more expensive slide type valves which slide valves, and the flat seats upon which they slide as they are shifted from one position to another, in their manufacture require a considerable amount of accurate machining thus increasing the cost of the valve device of which they are an important part.

Abstract: A brake control valve device, for railway vehicles, embodies an adjustable service brake cylinder limiting valve that may provide any chosen brake cylinder pressure and also an adjustable emergency brake cylinder limiting valve that may provide any selected higher brake cylinder pressure when the control valve device is conditioned for effecting either a direct release of the brakes or a graduated release of the brakes accordingly as a removable selector valve cover member is secured to a ported face formed on the exterior surface of the control valve device in either a direct release or a graduated release position with respect to this ported face.

Abstract: An upgraded railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a plurality of simple and inexpensive poppet valves and a spool-type valve which valves replace yet perform the same functions heretofore performed by more expensive slide-type valves which slide valves, and the flat seats upon which they slide as they are shifted from one position to another, in their manufacture require a considerable amount of accurate machining thus increasing the cost of the brake control valve device of which they are an important part.

Abstract: This invention relates to a brake valve device having a fluid pressure operated relay valve device for varying the pressure in a train brake pipe in accordance with the degree of fluid under pressure supplied to an equalizing reservoir and the relay valve device by a control valve device wherein the control valve device is operative, in a release position of a brake valve handle, in the manner of a self-lapping valve device to establish a preselected pressure of the fluid supplied to the equalizing reservoir and the relay valve device, and, in a service and lap position of the brake valve handle, in the manner of a manually-operated brake valve device, to release fluid under pressure from the equalizing reservoir and relay valve device to atmosphere. Therefore, the time that the handle remains in the service position determines the degree of reduction of the pressure of the fluid in the equalizing reservoir and the relay valve device.

Abstract: An inexpensive emergency valve device embodies a cycling-type continual quick service valve operative by an abutment, subject on its respective opposite sides to the pressure in a train brake pipe and in a quick action chamber, in response to a service rate of reduction of the pressure of the fluid in a train brake pipe to repeatedly vent and supply fluid under pressure from and to a quick service volume disposed on one side of a diaphragm-type valve that is operatively responsive to the venting of fluid under pressure from this volume to effect the release of fluid under pressure from the quick action chamber to atmosphere at a rate faster than a service rate to cause joint cyclic operation of the continual quick service valve and the diaphragm valve to successively supply fluid under pressure from the brake pipe to and thereafter release fluid under pressure from the quick service volume at a certain rate and from the quick action chamber at a faster rate so long as fluid under pressure is released from the

Abstract: This invention relates to a pivoted double handle self-locking mechanism for operating a valve. Each of a pair of oppositely extending handles is pivotally mounted on a socket member secured to a key that rotates the valve, each handle being provided with a gear segment that meshes with a corresponding gear segment on the other handle whereby rocking of either handle about its pivot by a lever connected thereto effects rocking of the other handle so that a lug on one handle is moved to a position in which it will not engage a stop carried by the valve body upon subsequent arcuate movement of both handles while in their rocked position in response to a manual pull exerted on the lever connected to either one of the handles.

Abstract: This invention relates to a vented ball-type angle cock for use at each end of the brake pipe on a railway vehicle in which the brake pipe hose connected to the angle cock outlet is vented to atmosphere in the cock closed position via a drilled passageway extending through the ball valve, a guide bushing carried by the ball valve, and a trunnion on one end of which is rotatably supported the bushing, the opposite end of this trunnion being supported on the bottom of the cavity in the angle cock body in which the ball valve is so disposed that in its open position a communication is established between the brake pipe and the hose that is connected to the hose at the adjacent end of the brake pipe on the next car in a train.

Abstract: A mechanical or magnetic-actuated control valve device for so controlling pressure of fluid in an air spring for interposition between a sprung portion and an unsprung portion of a vehicle as to support the sprung portion at a substantially constant preselected height relative to the unsprung portion irrespective of the load carried by the sprung portion.A supply valve and a release valve are operated by either mechanical or electro-magnetic actuators by a cam to supply fluid under pressure to or release fluid under pressure from the air spring accordingly as the cam is rocked in one direction or in an opposite direction from a neutral position.

Abstract: This invention relates to an annular braking disc in which a pair of spaced-apart braking members are connected by a first set of radial fins, each adjacent spaced-apart pair of which is integral with the opposite sides of one of a second set of radial fins, the radial length of which is less than the radial length of the first set of fins. The inner ends of a certain chosen number of fins of both sets of fins are integral one with the other and so arranged and disposed as to provide one of several arcuate segments on each of which is formed an inwardly-extending circumferentially spaced-apart securing lug. The lug that is thus formed integral with each with one of these segments is so disposed inward from each of a pair of braking faces formed on the respective opposite sides of the braking disc as to be out of contact with braking elements that may have braking engagement with these braking faces.

Abstract: This invention relates to a railway vehicle continual quick service valve device that operates in reoccurring cycles so long as fluid under pressure is being released from a train brake pipe by a brake valve device on the locomotive to, upon each cycle, locally release fluid under pressure from the train brake pipe to atmosphere via this valve device on each vehicle.

Abstract: This invention relates to a novel railway vehicle brake apparatus that comprises a brake cylinder device having two tandem-connected pistons of unequal size, the larger of which is provided with a check valve and cooperates with a hollow cylindrical body in which it is slidably disposed to form on its respective opposite sides two fluid pressure storage reservoirs wherein is stored fluid under pressure for effecting a brake application. This brake apparatus further comprises a novel brake control valve device that is so responsive to a reduction of pressure in a train brake pipe as to first cause simultaneous shifting of both pistons in a brake-applying direction and a transfer of fluid under pressure from one side of the larger piston to the other until a chosen braking force is transmitted through brake rigging to press brake shoes against the wheels of a vehicle.

Abstract: This invention relates to a vehicle brake apparatus wherein a service brake application is effected by a spring in response to the reduction of the pressure of fluid in a first chamber on one side of a brake-applying piston, and an emergency brake application is effected by the establishment of a fluid pressure in a second chamber on the other side of this piston whereby this other side of the piston is subject simultaneously to both the fluid pressure force thus established and the force of the above-mentioned spring.

Abstract: An upgraded railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a plurality of simple and inexpensive poppet valves that replace yet perform the same functions heretofore performed by more expensive slide type valves which slide valves, and the flat seats upon which they slide as they are shifted from one position to another, in their manufacture require a considerable amount of accurate machining thus increasing the cost of the valve device of which they are an important part.

Abstract: A railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a plurality of simple and inexpensive diaphragm-type valves certain of which are subject on their respective opposite sides to brake pipe pressure and quick action chamber pressure. The construction and arrangement of these diaphragm-type valves are such that a service rate of reduction of brake pipe pressure enables flow of fluid under pressure from the quick action chamber to the brake pipe at a service rate, and an emergency rate of reduction of brake pipe pressure enables one of these diaphragm-type valves to effect the supply of fluid under pressure from the quick action chamber to a brake pipe vent valve device the resulting operation of which vents fluid under pressure from the brake pipe to atmosphere at an emergency rate to thereby cause an emergency brake application.

Abstract: An inexpensive emergency valve device embodies a first movable abutment, subject on its respective opposite sides to the pressures in a brake pipe and a quick action chamber, that, upon a service rate of reduction of brake pipe pressure, unseats a poppet valve from one of two valve seats between which it is disposed so that, while unseated from both valve seats, fluid can flow at a service rate from the quick action chamber, one side of the first abutment and both sides of a second abutment, operatively connected to a combined emergency and brake pipe vent valve to atmosphere so long as brake pipe pressure is reduced at a service rate thereby preventing an emergency brake application.

Abstract: Manual closure of a switch in a power-supply circuit to an explosive type bolt causes detonation of the bolt which releases a caged spring that thereupon is rendered effective to rock a lever in the direction to lift a current-collecting shoe out of engagement with the surface of a power-supply third rail thereby causing power knockout to the driving motors of an electrically propelled vehicle.

Abstract: The usual brake cylinder in a conventional freight car brake apparatus is replaced by a novel cylinder that embodies a pair of pistons and a spring of sufficient strength to effect a hand brake application. Conventional brake applications and releases are effected accordingly as the usual brake control valve effects the supply of fluid under pressure to and the release thereof from one of the two pistons which are connected to a common piston rod through which force is transmitted to brake applying brake shoes. The second piston is subjected on one side to the force of the spring and on the other side selectively to brake pipe pressure or pressure in a hand brake release reservoir that is charged from the brake pipe to a higher pressure by an air-driven air booster operated by air from the brake pipe. Thus, the spring is enabled to effect a hand brake application in the absence of fluid under pressure acting on the other side of the second piston.

Abstract: A brake control valve device, for railway vehicles, embodies means to enable this control valve device to be selectively conditioned for effecting either a direct release of the brakes or a graduated release of the brakes accordingly as a removable selector valve cover member having a ported face is secured to a ported face formed on the exterior surface of the control valve device in either a first or a second position with respect to this ported face on the control valve device.